JPH03143796A - Brake device for two wheeler - Google Patents
Brake device for two wheelerInfo
- Publication number
- JPH03143796A JPH03143796A JP1280618A JP28061889A JPH03143796A JP H03143796 A JPH03143796 A JP H03143796A JP 1280618 A JP1280618 A JP 1280618A JP 28061889 A JP28061889 A JP 28061889A JP H03143796 A JPH03143796 A JP H03143796A
- Authority
- JP
- Japan
- Prior art keywords
- cantilever
- shaft
- brake
- cantilevers
- mounting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 12
- 238000005452 bending Methods 0.000 claims 1
- 230000010355 oscillation Effects 0.000 abstract 2
- 230000000694 effects Effects 0.000 description 5
- 238000005336 cracking Methods 0.000 description 1
- 230000001404 mediated effect Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62L—BRAKES SPECIALLY ADAPTED FOR CYCLES
- B62L1/00—Brakes; Arrangements thereof
- B62L1/02—Brakes; Arrangements thereof in which cycle wheels are engaged by brake elements
- B62L1/06—Brakes; Arrangements thereof in which cycle wheels are engaged by brake elements the wheel rim being engaged
- B62L1/10—Brakes; Arrangements thereof in which cycle wheels are engaged by brake elements the wheel rim being engaged by the elements moving substantially parallel to the wheel axis
- B62L1/14—Brakes; Arrangements thereof in which cycle wheels are engaged by brake elements the wheel rim being engaged by the elements moving substantially parallel to the wheel axis the elements being mounted on levers pivotable about different axes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、自転車等の二輪車用のブレーキ装置に関する
。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a brake device for two-wheeled vehicles such as bicycles.
（従来の技術）
自転車等の二輪車に用いられるブレーキ装置として、第
５図にその左半分を示すようにカンチレバー式のものが
ある。(Prior Art) As a brake device used for two-wheeled vehicles such as bicycles, there is a cantilever type brake device, the left half of which is shown in FIG.
このブレーキ装置は、従来、前輪１を支持するフォーク
の前側に台座を介して左右一対のカンチレバー２を枢支
すると共に、この各カンチレバー２上端のワイヤー連結
部３間にアーチワイヤー４を連結し、各カンチレバー２
の中途部に前側から取付軸５を挿入し締結して、この各
取付軸５に、左右一対のブレーキシュー６の軸部７をカ
ンチレバー２の前側で挿入し固定した構造であって、制
動時にはアーチワイヤー４を介して左右一対のカンチレ
バー２を台座の軸部廻りに前輪１側に回動させ、そのブ
レーキシュー６を前輪１のリムに対して左右両側から押
付けて制動するようになっている。Conventionally, this brake device has a pair of left and right cantilevers 2 pivotally supported via a pedestal on the front side of a fork that supports a front wheel 1, and an archwire 4 is connected between wire connecting portions 3 at the upper ends of each cantilever 2. Each cantilever 2
A mounting shaft 5 is inserted into the middle part from the front side and fastened, and the shaft part 7 of a pair of left and right brake shoes 6 is inserted and fixed to each of the mounting shafts 5 at the front side of the cantilever 2. A pair of left and right cantilevers 2 are rotated around the shaft of a pedestal toward the front wheel 1 via an archwire 4, and brake shoes 6 are pressed against the rim of the front wheel 1 from both left and right sides to perform braking. .
（発明が解決しようとする課題）
しかし、従来のブレーキ装置は、次の三点で問題がある
。先ず第１に、従来はブレーキシュー６の軸部７が前後
方向の中央部にあるため、制動時に、シュー８を受ける
シューホルダー９と軸部７との固定部分に強大な応力が
発生し、破損する惧れがある。即ち、制動時にはリムと
シュー８との摩擦によって、左右一対のブレーキシュー
６の前側が仮想線のように外方に広がるあおり現象が生
じるが、従来は軸部７が前後方向の中央部にあるため、
その時のモーメントが大となり、軸部７のシューホルダ
ー９に対する固定部分の負担が大きくなる欠点がある。(Problems to be Solved by the Invention) However, the conventional brake device has problems in the following three points. First of all, conventionally, since the shaft portion 7 of the brake shoe 6 is located at the center in the longitudinal direction, during braking, a large stress is generated in the fixed portion between the shoe holder 9, which receives the shoe 8, and the shaft portion 7. There is a risk of damage. That is, during braking, the friction between the rim and the shoes 8 causes a phenomenon in which the front sides of the pair of left and right brake shoes 6 spread outward as shown in the imaginary line, but conventionally, the shaft portion 7 is located at the center in the front-rear direction. For,
There is a drawback that the moment at this time becomes large, and the load on the fixed portion of the shaft portion 7 to the shoe holder 9 becomes large.
第２に、従来は取付軸５をカンチレバー２に前側から挿
入し、その後端に取付ナツト１０を螺合して締結してい
るので、カンチレバー２とフォークとの間の狭い空間で
取付ナツト１０を廻さなければならなくなり、その作業
が構造上、非常に困難である。Second, conventionally, the mounting shaft 5 is inserted into the cantilever 2 from the front side, and the mounting nut 10 is screwed onto the rear end for fastening. It has to be rotated, and this work is extremely difficult due to its structure.
第３に、従来のカンチレバー２は枢支部から上方に向か
って側面視において略直線状であって、ワイヤー連結部
３とブレーキシュー６の軸部７とが前後方向に間隔りだ
け離れていたので、アーチワイヤー４を上方に引上げて
制動する際に、これらの間にも間隔りに相当するモーメ
ントが生じ、カンチレバー２の撓み等によって十分な制
動効果を発揮し得ない欠点がある。Thirdly, the conventional cantilever 2 has a substantially straight shape in side view upward from the pivot portion, and the wire connecting portion 3 and the shaft portion 7 of the brake shoe 6 are separated from each other by an interval in the front-rear direction. , when the archwire 4 is pulled upward and braked, a moment corresponding to the distance is generated between them, and the cantilever 2 is deflected, resulting in a disadvantage that a sufficient braking effect cannot be exerted.
本発明は、このような従来の課題に鑑み、制動時におけ
る軸部の固定部分の負担を軽減すると共に、取付軸の組
立時の作業性を良くし、更には十分な制動効果を発揮で
きるようにすることを目的とする。In view of these conventional problems, the present invention has been developed to reduce the burden on the fixed part of the shaft during braking, improve workability when assembling the mounting shaft, and further enable sufficient braking effect. The purpose is to
（課題を解決するための手段）
本発明は、第１の手段として、前輪１１を支持するフロ
ントフォーク１２の前方側に台座１３を介して左右一対
のカンチレバー１８を枢支すると共に、この左右一対の
カンチレバー１８の上端部にアーチワイヤー３９を連結
し、各カンチレバー１８に、前後方向の取付軸２６を挿
入し締結し、この各取付軸２６に、左右一対のブレーキ
シュー２７の軸部３０を挿支した二輪車用ブレーキ装置
において、前記各軸部３０をブレーキシュー２７の前後
方向の中央よりも後部側に設け、各取付軸２６を各カン
チレバー１８に後方から挿入して前部側の取付ナツト３
５で締結し、この各取付軸２６に、カンチレバー１８の
後方側で各ブレーキシュー２７の軸部３０を挿入し、各
カンチレバー１８のワイヤー連結部２５と各ブレーキシ
ュー２７の軸部３０とが側面視においてアーチワイヤー
３９の延長線上の近傍に夫々位置するように、各カンチ
レバー１８の中途部を前方側に弯曲させたものである。(Means for Solving the Problems) As a first means, the present invention includes a pair of left and right cantilevers 18 that are pivotally supported on the front side of a front fork 12 that supports a front wheel 11 via a pedestal 13, and An archwire 39 is connected to the upper end of the cantilever 18 , and a mounting shaft 26 in the front and rear direction is inserted and fastened to each cantilever 18 . The shaft portions 30 of the pair of left and right brake shoes 27 are inserted into each of the mounting shafts 26 . In the brake device for a two-wheeled vehicle, each shaft portion 30 is provided on the rear side of the center of the brake shoe 27 in the longitudinal direction, and each mounting shaft 26 is inserted into each cantilever 18 from the rear, and the mounting nut 3 on the front side is inserted.
5, and insert the shaft portion 30 of each brake shoe 27 into each mounting shaft 26 on the rear side of the cantilever 18, so that the wire connection portion 25 of each cantilever 18 and the shaft portion 30 of each brake shoe 27 are connected to the side surface. The middle part of each cantilever 18 is curved forward so that it is located near the extension line of the archwire 39 when viewed.
また本発明は、第２の手段として、後輪を支持するリヤ
フォークの後方側に台座１３を介して左右一対のカンチ
レバー１８を枢支すると共に、この左右一対のカンチレ
バー１８の上端部にアーチワイヤー （３９）を連結し
、各カンチレバー（１８）に、前後方向の取付軸２６を
挿入し締結し、この各取付軸２６に、左右一対のブレー
キシュー２７の軸部３０を挿支した二輪車用ブレーキ装
置において、前記各軸部３０をブレーキシュー２７の前
後方向の中央よりも後部側に設け、各取付軸２６を各カ
ンチレバー１８に前方から挿入して後部側の取付ナツト
３５で締結し、この各取付軸２６に、カンチレバー１８
の前方側で各ブレーキシュー２７の軸部３０を挿入し、
各カンチレバー１８のワイヤー連結部２５と各ブレーキ
シュー２７の軸部３０とが側面視においてアーチワイヤ
ー３９の延長線上の近傍に夫々位置するように、各カン
チレバー１８の中途部を後方側に弯曲させたものである
。Further, as a second means, the present invention includes a pair of left and right cantilevers 18 that are pivotally supported on the rear side of a rear fork that supports a rear wheel via a pedestal 13, and an arch wire attached to the upper end of the pair of left and right cantilevers 18. (39) are connected, a mounting shaft 26 in the longitudinal direction is inserted and fastened to each cantilever (18), and the shaft portions 30 of a pair of left and right brake shoes 27 are inserted into each mounting shaft 26.A two-wheeled vehicle brake In the device, each of the shaft portions 30 is provided on the rear side of the center of the brake shoe 27 in the longitudinal direction, and each mounting shaft 26 is inserted into each cantilever 18 from the front and fastened with a mounting nut 35 on the rear side. The cantilever 18 is attached to the mounting shaft 26.
Insert the shaft portion 30 of each brake shoe 27 on the front side of the
The middle part of each cantilever 18 is curved rearward so that the wire connecting part 25 of each cantilever 18 and the shaft part 30 of each brake shoe 27 are located near the extension line of the arch wire 39 when viewed from the side. It is something.
（作 用）
前輪用ブレーキにおいては、制動時にアーチワイヤー３
９を上方に引上げると、左右のカンチレバー１８が台座
１３廻りに回動し、左右のブレーキシュー２７を前輪１
１に押付けて前輪１１を制動する。この時、各ブレーキ
シュー２７はあおり現象を生じるが、軸部３０が中央よ
りも後側にあるため、その軸部３０の固定部分に作用す
る応力は小さい。また、各カンチレバー１８のワイヤー
連結部２５とブレーキシュー２７の軸部３０は、アーチ
ワイヤー３９の延長線上の近傍にあり、前後に大きくず
れていないので、両者間に発生するモーメントは小さく
なる。(Function) For front wheel brakes, the arch wire 3
9 upward, the left and right cantilevers 18 rotate around the pedestal 13, and the left and right brake shoes 27 are connected to the front wheel 1.
1 to brake the front wheels 11. At this time, each brake shoe 27 causes a tilting phenomenon, but since the shaft portion 30 is located on the rear side of the center, the stress acting on the fixed portion of the shaft portion 30 is small. Further, the wire connecting portion 25 of each cantilever 18 and the shaft portion 30 of the brake shoe 27 are located near the extension line of the arch wire 39 and do not deviate significantly back and forth, so the moment generated between them is small.
取付軸２６は、カンチレバー１８に後側から挿入し、前
端の取付ナツト３５を締付けてカンチレバー１８に締結
し固定する。The mounting shaft 26 is inserted into the cantilever 18 from the rear side, and fastened and fixed to the cantilever 18 by tightening the mounting nut 35 at the front end.
後輪用ブレーキ装置においても同様である。The same applies to the rear wheel brake device.
（実施例） 以下、本発明の実施例を図面に基づいて詳述する。(Example) Hereinafter, embodiments of the present invention will be described in detail based on the drawings.
第１図及び第２図は前輪用ブレーキ装置における実施例
を示す。第１図及び第２図において、１１は前輪、１２
は前輪１１を支持するフロントフォークであり、このフ
ロントフォーク１２の前側には左右一対の台座１３が溶
接等によって固定されている。1 and 2 show an embodiment of a front wheel brake device. In Figures 1 and 2, 11 is the front wheel, 12
is a front fork that supports the front wheel 11, and a pair of left and right pedestals 13 are fixed to the front side of the front fork 12 by welding or the like.
各台座１３は、第３図及び第４図に示すように、調節孔
１４付きのフランジ部１５と軸部１６とを有し、その軸
部１６上にパイプコロ１７を介して各カンチレバー１８
のボス部１９が回動自在に套嵌し枢支ミ、二いる。各カ
ンチレバー１８のボス部１９は、台座１．．１７）軸部
１６内に螺挿されたポルト２０により平座金２−ゴ介し
て抜止めされ、またボス部１９と台座１３のフランジ部
１５との間には、カンチレバー１８戻し用のバネ２２が
介在されている。バネ２２はつる巻型であって、パイプ
カラー１７に套嵌されると共に、バネカバー２３により
保護されている。そして、このバネ２２の一端はボス部
１９の係合孔２４に、他端はフランジ部１５の調節孔工
４に夫々係合されており、カンチレバー１８を外方に付
勢するようになっている。なお、バネ２２の調節孔１４
に対する係合位置を選択することにより、カンチレバー
１８の戻し力を任意に調節できる。各カンチレノ＼−１
８はボス部１９と上端のワイヤー連結部２５とを結ぶ線
分がフロントフォーク１２と側面視において略平行であ
って、中途部が前方に弯曲するように形成されており、
その中途部に、取付軸２６を介して左右一対のブレーキ
シュー２７が取付けられている。なお、各カンチレバー
エ８は、中途部から上部側が斜め上方に弯曲する正面視
く字状である。As shown in FIGS. 3 and 4, each pedestal 13 has a flange portion 15 with an adjustment hole 14 and a shaft portion 16, and each cantilever 18 is mounted on the shaft portion 16 via a pipe roller 17.
The boss portion 19 is rotatably fitted into the sleeve and has two pivot points. The boss portion 19 of each cantilever 18 is connected to the base 1. ．． 17) A port 20 screwed into the shaft portion 16 is prevented from coming out via a flat washer 2, and a spring 22 for returning the cantilever 18 is provided between the boss portion 19 and the flange portion 15 of the pedestal 13. It is mediated. The spring 22 has a helical shape and is fitted into the pipe collar 17 and protected by a spring cover 23. One end of this spring 22 is engaged with the engagement hole 24 of the boss part 19, and the other end is engaged with the adjustment hole 4 of the flange part 15, so that the cantilever 18 is urged outward. There is. Note that the adjustment hole 14 of the spring 22
By selecting the engagement position for the cantilever 18, the return force of the cantilever 18 can be adjusted as desired. Each cantileno＼-1
8 is formed such that a line segment connecting the boss portion 19 and the wire connecting portion 25 at the upper end is approximately parallel to the front fork 12 in side view, and the midway portion is curved forward;
A pair of left and right brake shoes 27 are attached to a midway portion thereof via an attachment shaft 26. It should be noted that each cantilever fly 8 has a dogleg shape when viewed from the front, with the upper side curved obliquely upward from the middle part.
各ブレーキシュー２７はゴム類のシュー２８をシューホ
ルダー２９に固着したものであり、そのシューホルダー
２９には、ブレーキシュー２７０前ａ＝ｌ’Ｊの中央よ
りも後部側に偏位した位置に、ロー３７ト加工された軸
部３０が直角に固定されている。各取付軸２６は孔３１
付きの頭部３２とねじ部３３とを備えたものであって、
その頭部３２の孔３１にブレーキシュー２７の軸部３０
が挿入されている。そして、取付軸２６は軸部３０を種
皮した頭部３２がカンチレバー１８の後側となるように
、その軸部３０がカン：、′−レバー１８の長孔３４に
後側から挿入され、ねじ部３３の前端に螺合された取付
ナット３５により前座金３６、平座金３７を介して締結
し固定されている。なお、カンチレバー１８の後側には
後座金３８が介在され、取付ナツト３５の締結時に、こ
の後座金３８にブレーキシュー２７の軸部３０が当接し
て固定されるようになっている。各カンチレバー１８の
上端のワイヤー連結部２５には、保合具、ボルト等を介
してアーチワイヤー３９０両端が連結され、またアーチ
ワイヤー３９は、制動時に中央部を上方に引上げるよう
に吊り具４０を介してブレーキワイヤー４１に連結され
ている。Each brake shoe 27 has a rubber shoe 28 fixed to a shoe holder 29, and the shoe holder 29 has a rubber shoe 28 at a position offset toward the rear from the center of the front a=l'J of the brake shoe 270. A rotted shaft portion 30 is fixed at right angles. Each mounting shaft 26 has a hole 31
It is equipped with a head 32 and a threaded part 33,
The shaft portion 30 of the brake shoe 27 is inserted into the hole 31 of the head portion 32.
is inserted. Then, the mounting shaft 26 is inserted from the rear side into the long hole 34 of the cantilever 18 so that the head 32 made of the seed coat of the shaft part 30 is on the rear side of the cantilever 18, and screwed A mounting nut 35 screwed onto the front end of the portion 33 is fastened and fixed via a front washer 36 and a flat washer 37. A rear washer 38 is interposed on the rear side of the cantilever 18, and when the mounting nut 35 is fastened, the shaft portion 30 of the brake shoe 27 comes into contact with the rear washer 38 and is fixed. Both ends of an archwire 390 are connected to the wire connecting portion 25 at the upper end of each cantilever 18 via retainers, bolts, etc., and the archwire 39 is connected to a hanging device 40 so as to pull the central portion upward during braking. It is connected to the brake wire 41 via.
そして、各カンチレバー１８のボス部１９及びワイヤー
連結部２５と各ブレーキシュー２７の軸部３０は、側面
視において、アーチワイヤー３９の延長線上の極近傍に
位置するように配置されている。The boss portion 19 and wire connection portion 25 of each cantilever 18 and the shaft portion 30 of each brake shoe 27 are arranged so as to be located very close to the extension line of the arch wire 39 when viewed from the side.
なお、４２は座金である。Note that 42 is a washer.
上記構成のブレーキ装置において、制動時にブレーキレ
バー（図示せず）を操作すると、ブレーキワイヤー４１
を介してアーチワイヤー３９の中央部が上方に引上げら
れるので、左右一対のカンチレバー１８が台座１３の軸
部１６廻りにバネ２２に抗して夫々内側に回動し、各ブ
レーキシュー２７を前輪１１のタイヤリムに押付け、前
輪１１を制動する。In the brake device having the above configuration, when the brake lever (not shown) is operated during braking, the brake wire 41
Since the center portion of the archwire 39 is pulled upward through the center portion of the archwire 39, the pair of left and right cantilevers 18 rotate inwardly around the shaft portion 16 of the pedestal 13 against the spring 22, and each brake shoe 27 is pulled up toward the front wheel 11. to brake the front wheel 11.
この制動時に、左右のブレーキシュー２７は前側が広が
るあおり現象を生じるが、その軸部３０がブレーキシュ
ー２７の前後方向の中央よりも後側に偏位した位置にあ
り、シュー２８の後端までの長さが短かくなっているの
で、あおり現象に伴なって発生するモーメントは従来に
比べて小さくなる。従って、シューホルダー２９と軸部
３０との固定部分に作用する応力が小さくなり、その負
担が軽くなるので、固定部分の変形、亀裂等の破損を防
止できる。During this braking, the front side of the left and right brake shoes 27 widens, but the shaft portion 30 of the left and right brake shoes 27 is located at a position deviated rearward from the center of the brake shoe 27 in the longitudinal direction, and the rear end of the shoe 28 Since the length of is shortened, the moment generated due to the tilting phenomenon is smaller than in the past. Therefore, the stress acting on the fixed portion between the shoe holder 29 and the shaft portion 30 is reduced, and the burden is lightened, so that damage such as deformation and cracking of the fixed portion can be prevented.
また、この制動時に、各ブレーキシュー２７は、アーチ
ワイヤー３９の引上げによってカンチレバー１８、取付
軸２６を介して前輪１１のタイヤリム側に押付けられる
が、各カンチレバー１８のワイヤー連結部２５と各ブレ
ーキシュー２７の軸部３０が側面視において、アーチワ
イヤー３９の延長線上の極く近傍にあるため、これら両
者間に発生するモーメントは従来に比べて極めて小さく
なる。このため制動時におけるカンチレバー１８の撓み
等が極く小さくなり、十分な制動効果が得られる。Furthermore, during this braking, each brake shoe 27 is pressed against the tire rim side of the front wheel 11 via the cantilever 18 and the mounting shaft 26 by pulling up the arch wire 39. Since the shaft portion 30 of the arch wire 39 is located very close to the extension line of the arch wire 39 when viewed from the side, the moment generated between the two is extremely small compared to the conventional art. Therefore, the deflection of the cantilever 18 during braking becomes extremely small, and a sufficient braking effect can be obtained.
組立に際しては、ブレーキシュー２７の軸部３０を取付
軸２６の孔３１に挿入した状態で、その取付軸２６のね
じ部３３をカンチレバー１８の長孔３４に後側から挿入
する。そして、ねじ部３３の前端に取付ナツト３５を螺
合し、この取付ナツト３５を締付けて取付軸２６及びブ
レーキシュー２７をカンチレバー１８に固定する。この
ように取付軸２６をカンチレバー１８に後側から挿入し
、前側で取付ナフト３５を廻して締付けることにより、
取付ナツト３５を廻すための作業空間が広くなり、作業
性が良好になる。During assembly, with the shaft portion 30 of the brake shoe 27 inserted into the hole 31 of the mounting shaft 26, the threaded portion 33 of the mounting shaft 26 is inserted into the elongated hole 34 of the cantilever 18 from the rear side. Then, a mounting nut 35 is screwed onto the front end of the threaded portion 33, and the mounting shaft 26 and brake shoe 27 are fixed to the cantilever 18 by tightening the mounting nut 35. In this way, by inserting the mounting shaft 26 into the cantilever 18 from the rear side and tightening it by rotating the mounting napht 35 from the front side,
The working space for turning the mounting nut 35 is widened, and work efficiency is improved.
本発明は、後輪用ブレーキにおいても同様に実施できる
。この後輪用ブレーキの場合には、リヤフォークの後方
側に台座工３を介して左右一対のカンチレバー１８を枢
支する。そして、取付軸２６をカンチレバー１８に前方
から挿入して後部側の取付ナツト３５で締結し、この取
付軸２６に、カンチレバー１８の前方側でブレーキシュ
ー２７の軸部３０を挿入し、カンチレバー１８のワイヤ
ー連結部２５とブレーキシュー２７の軸部３０とが側面
視においてアーチワイヤー３９の延長線上の近傍に夫々
位置するように、カンチレバー１８の中途部を後方側に
弯曲させれば良い。The present invention can be similarly implemented in a rear wheel brake. In the case of this rear wheel brake, a pair of left and right cantilevers 18 are pivotally supported on the rear side of the rear fork via a pedestal 3. Then, the mounting shaft 26 is inserted into the cantilever 18 from the front and fastened with the mounting nut 35 on the rear side.The shaft portion 30 of the brake shoe 27 is inserted into the mounting shaft 26 at the front side of the cantilever 18, and the The middle part of the cantilever 18 may be curved rearward so that the wire connecting part 25 and the shaft part 30 of the brake shoe 27 are located near the extension line of the arch wire 39 when viewed from the side.
（発明の効果）
本発明によれば、ブレーキシュー２７の軸部３０が前後
方向の中央よりも後側にあるので、制動時における軸部
３０の固定部分の応力が小さくなり、その負担を軽減し
て破損を防止できる。また前輪用ブレーキ装置では、取
付軸２６をカンチレバー１８に後側から挿入して前部側
の取付ナフト３５で締付けるようにしているため、取付
ナツト３５の操作が容易であり、作業性が良好になる。(Effects of the Invention) According to the present invention, since the shaft portion 30 of the brake shoe 27 is located on the rear side of the center in the longitudinal direction, the stress on the fixed portion of the shaft portion 30 during braking is reduced, reducing the burden. to prevent damage. In addition, in the front wheel brake device, the mounting shaft 26 is inserted into the cantilever 18 from the rear side and tightened with the mounting nut 35 on the front side, making it easy to operate the mounting nut 35 and improving workability. Become.
同様に後輪用ブレーキ装置では、取付軸２６をカンチレ
バー１８に前側から挿入して後部側の取付ナツト３５で
締付けるようにしているので、前述と同様、作業性が良
好になる。更に、カンチレバー１８のワイヤー連結部２
５とブレーキシュー２７の軸部３０とが側面視において
アーチワイヤー３９の延長線上の近傍に位置するように
、カンチレバー１８の中途部を前方に弯曲させているた
め、制動時に発注するワイヤー連結部２５と軸部３０と
の間のモーメントが小さくなり、十分な制動効果を発揮
できる。Similarly, in the rear wheel brake device, the mounting shaft 26 is inserted into the cantilever 18 from the front side and tightened with the mounting nut 35 on the rear side, so the workability is improved as described above. Furthermore, the wire connection portion 2 of the cantilever 18
5 and the shaft portion 30 of the brake shoe 27 are located near the extension line of the arch wire 39 in side view, so that the midway portion of the cantilever 18 is curved forward. The moment between the shaft portion 30 and the shaft portion 30 is reduced, and a sufficient braking effect can be exerted.
第１図は本発明の一実施例を示す全体の側面図、第２図
は同全体の正面図、第３図は同分解斜視図、第４図は同
カンチレバー枢支部の断面図、第５図は従来例を示す平
面図である。
１工・・・前輪、１２・・・フロントフォーク、１３・
・・台座、１８・・・カンチレバー、１９・・・ボス部
、２５・・・ワイヤー連結部、２６・・・取付軸、２７
・・・ブレーキシュー、３０・・・軸部、
３５・・・取付ナラ
ト、
３９・・・アーチワイヤー
特
許
出
願
人
吉貝機械金属株式会社1 is an overall side view showing an embodiment of the present invention, FIG. 2 is an overall front view, FIG. 3 is an exploded perspective view, FIG. 4 is a sectional view of the cantilever pivot, and FIG. The figure is a plan view showing a conventional example. 1 work...Front wheel, 12...Front fork, 13.
...Pedestal, 18...Cantilever, 19...Boss part, 25...Wire connection part, 26...Mounting shaft, 27
...Brake shoe, 30...Shaft portion, 35...Mounting nut, 39...Arch wire patent applicant Yoshigai Machinery & Metals Co., Ltd.
Claims (2)
）の前方側に台座（１３）を介して左右一対のカンチレ
バー（１８）を枢支すると共に、この左右一対のカンチ
レバー（１８）の上端部にアーチワイヤー（３９）を連
結し、各カンチレバー（１８）に、前後方向の取付軸（
２６）を挿入し締結し、この各取付軸（２６）に、左右
一対のブレーキシュー（２７）の軸部（３０）を挿支し
た二輪車用ブレーキ装置において、前記各軸部（３０）
をブレーキシュー（２７）の前後方向の中央よりも後部
側に設け、各取付軸（２６）を各カンチレバー（１８）
に後方から挿入して前部側の取付ナット（３５）で締結
し、この各取付軸（２６）に、カンチレバー（１８）の
後方側で各ブレーキシュー（２７）の軸部（３０）を挿
入し、各カンチレバー（１８）のワイヤー連結部（２５
）と各ブレーキシュー（２７）の軸部（３０）とが側面
視においてアーチワイヤー（３９）の延長線上の近傍に
夫々位置するように、各カンチレバー（１８）の中途部
を前方側に弯曲させたことを特徴とする二輪車用ブレー
キ装置。(1) Front fork (12) that supports the front wheel (11)
), a pair of left and right cantilevers (18) are pivotally supported via a pedestal (13), and an archwire (39) is connected to the upper end of the pair of left and right cantilevers (18). ) on the longitudinal mounting shaft (
26) are inserted and fastened, and the shaft portions (30) of a pair of left and right brake shoes (27) are inserted and supported on each of the mounting shafts (26).
is provided on the rear side of the front-rear center of the brake shoe (27), and each mounting shaft (26) is connected to each cantilever (18).
from the rear and tighten with the front mounting nut (35), and insert the shaft (30) of each brake shoe (27) on the rear side of the cantilever (18) into each mounting shaft (26). and the wire connection part (25) of each cantilever (18).
) and the shaft portion (30) of each brake shoe (27) are respectively located near the extension line of the archwire (39) in a side view, by bending the midway portion of each cantilever (18) to the front side. A brake device for two-wheeled vehicles characterized by:
３）を介して左右一対のカンチレバー（１８）を枢支す
ると共に、この左右一対のカンチレバー（１８）の上端
部にアーチワイヤー（３９）を連結し、各カンチレバー
（１８）に、前後方向の取付軸（２６）を挿入し締結し
、この各取付軸（２６）に、左右一対のブレーキシュー
（２７）の軸部（３０）を挿支した二輪車用ブレーキ装
置において、前記各軸部（３０）をブレーキシュー（２
７）の前後方向の中央よりも後部側に設け、各取付軸（
２６）を各カンチレバー（１８）に前方から挿入して後
部側の取付ナット（３５）で締結し、この各取付軸（２
６）に、カンチレバー（１８）の前方側で各ブレーキシ
ュー（２７）の軸部（３０）を挿入し、各カンチレバー
（１８）のワイヤー連結部（２５）と各ブレーキシュー
（２７）の軸部（３０）とが側面視においてアーチワイ
ヤー（３９）の延長線上の近傍に夫々位置するように、
各カンチレバー（１８）の中途部を後方側に弯曲させた
ことを特徴とする二輪車用ブレーキ装置。(2) A pedestal (1
3), a pair of left and right cantilevers (18) are pivotally supported, and an archwire (39) is connected to the upper end of the pair of left and right cantilevers (18), and each cantilever (18) is attached in the front-rear direction. In a two-wheeled vehicle brake device in which a shaft (26) is inserted and fastened, and the shaft portions (30) of a pair of left and right brake shoes (27) are inserted and supported on each of the mounting shafts (26), each of the shaft portions (30) Brake shoes (2)
7) on the rear side of the center in the front-rear direction, and each mounting shaft (
26) into each cantilever (18) from the front and fasten it with the mounting nut (35) on the rear side.
6), insert the shaft part (30) of each brake shoe (27) on the front side of the cantilever (18), and connect the wire connection part (25) of each cantilever (18) and the shaft part of each brake shoe (27). (30) and are respectively located near the extension line of the archwire (39) in side view.
A brake device for a two-wheeled vehicle, characterized in that a midway portion of each cantilever (18) is curved toward the rear.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1280618A JPH0755671B2 (en) | 1989-10-27 | 1989-10-27 | Brake system for motorcycles |
| FR9013111A FR2653738B1 (en) | 1989-10-27 | 1990-10-23 | BRAKE DEVICE FOR TWO - WHEELED VEHICLES. |
| IT48408A IT1242319B (en) | 1989-10-27 | 1990-10-25 | BRAKE DEVICE FOR TWO-WHEEL VEHICLES. |
| US07/604,204 US5133432A (en) | 1989-10-27 | 1990-10-29 | Cantilever brake for two wheeled vehicles with a curved cantilever middle portion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1280618A JPH0755671B2 (en) | 1989-10-27 | 1989-10-27 | Brake system for motorcycles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03143796A true JPH03143796A (en) | 1991-06-19 |
| JPH0755671B2 JPH0755671B2 (en) | 1995-06-14 |
Family
ID=17627557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1280618A Expired - Lifetime JPH0755671B2 (en) | 1989-10-27 | 1989-10-27 | Brake system for motorcycles |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US5133432A (en) |
| JP (1) | JPH0755671B2 (en) |
| FR (1) | FR2653738B1 (en) |
| IT (1) | IT1242319B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004514901A (en) * | 2000-11-29 | 2004-05-20 | キャスコ プロダクツ コーポレイション | Webbing tension sensor |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5320199A (en) * | 1993-04-21 | 1994-06-14 | Min Chen T | Braking device for a bicycle |
| DE9417115U1 (en) * | 1994-10-25 | 1996-03-21 | E & W Gloerfeld Gmbh | Support pin for a brake lever of a bicycle brake |
| US5538107A (en) * | 1995-06-06 | 1996-07-23 | Avid Enterprises, Inc. | Off-set brake arm |
| US5564531A (en) * | 1995-11-03 | 1996-10-15 | Avid Enterprises, Inc. | Adjustable brake arm and shoe mount for a cycle brake |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR948325A (en) * | 1947-06-24 | 1949-07-28 | Lefol & Cie | Improvements to so-called cantilever cycle brakes |
| FR1000840A (en) * | 1949-11-23 | 1952-02-18 | Brake linings for brakes of bicycles and other vehicles | |
| FR76617E (en) * | 1959-11-13 | 1961-11-10 | Manuf Arvernoise De Freins Et | Device for controlling a <cantilever> type brake for cycles, mopeds and the like |
| US4597474A (en) * | 1982-08-11 | 1986-07-01 | Shimano Industrial Company Limited | Brake for a bicycle |
| US4765443A (en) * | 1985-06-03 | 1988-08-23 | Cunningham Charles B | Caliper brake for mountain bicycles having wide tires |
| US4768623A (en) * | 1986-03-17 | 1988-09-06 | Shimano Industrial Company Limited | Cantilever brake for a bicycle |
| US4972927A (en) * | 1988-11-01 | 1990-11-27 | Stephens Charles W | Ball bearing caliper brake |
-
1989
- 1989-10-27 JP JP1280618A patent/JPH0755671B2/en not_active Expired - Lifetime
-
1990
- 1990-10-23 FR FR9013111A patent/FR2653738B1/en not_active Expired - Fee Related
- 1990-10-25 IT IT48408A patent/IT1242319B/en active IP Right Grant
- 1990-10-29 US US07/604,204 patent/US5133432A/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004514901A (en) * | 2000-11-29 | 2004-05-20 | キャスコ プロダクツ コーポレイション | Webbing tension sensor |
| JP4932126B2 (en) * | 2000-11-29 | 2012-05-16 | キャスコ プロダクツ コーポレイション | Webbing tension sensor |
Also Published As
| Publication number | Publication date |
|---|---|
| IT1242319B (en) | 1994-03-04 |
| IT9048408A0 (en) | 1990-10-25 |
| FR2653738A1 (en) | 1991-05-03 |
| US5133432A (en) | 1992-07-28 |
| JPH0755671B2 (en) | 1995-06-14 |
| IT9048408A1 (en) | 1992-04-25 |
| FR2653738B1 (en) | 1994-02-11 |
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